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Measurement and Instrumentation

Measurement and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is

 1 mA.
 4 mA.
 3 mA.
 2 mA.

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Measurement and Instrumentation
A current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading?

 5 A.
 2.03 A.
 6.09 A.
 4.06 A.

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Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate.
 accurate and direct reading.
 accurate and precise.
 precise.

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Measurement and Instrumentation
The adjustment of position of shading bands, in an energy meter is done to provide

None of the listed here
Creep compensation
Friction compensation
Breaking torque

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Measurement and Instrumentation
What is the unit of plane angle?

 Candela
 Steradian
 Radian
 Degree

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Measurement and Instrumentation
The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be

 248 V.
 250 V.
 260 V.
 252 V.

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